Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn't check if we have a value here before dereferencing it, causing an oops. I'm able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 80e34f4957ec3010c85f9bb0b568a8d46acdf535 before 4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42; affected 7b7b9774643220e53eef58c15bb29bd4182fe053 before 42637ca25c7d7b5a92804a679af5192e8c1a9f48; affected 9ffa7967f9379a0a1b924e9ffeda709d72237da7 before 39785761feadf261bc5101372b0b0bbaf6a94494; affected 6be0e4b59314e4a836495f6ffdc5d2c5b079deeb before aba3c7795f51717ae316f3566442dee7cc3eeccb; affected 2fafe7d5047f98791afd9a1d90d2afb70debc590 before f9890652185b72b8de9ebeb4406037640b6e1b53; affected 7e65ea887d0c0997f3053acd91a027af45e71c5b before b090d110e66636bca473fd8b98d5c97b555a965a; affected de144ff4234f935bd2150108019b5d87a90a8a96 before a421d218603ffa822a0b8045055c03eae394a7eb; affected 96260bde1ea8ae31a5402fe506abbb8951d5a42c; affected 5.11.20 before 5.12 |
| Linux / Linux | affected 4.9.269 before 4.9.271; affected 4.14.233 before 4.14.235; affected 4.19.191 before 4.19.193; affected 5.4.118 before 5.4.124; affected 5.10.36 before 5.10.42; affected 5.12.3 before 5.12.9 |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42
- https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48
- https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494
- https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb
- https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53
- https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a
- https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42
- https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48
- https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494
- https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb
- https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53
- https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a
- https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb